Bedtime and sleeping patterns for our twins!

I feel like during the day they sleep too much perhaps. I don't have a consistent nap time for them, they usually fall asleep after a bottle. Sometimes they sleep 45 min but at other times they can sleep 2-3 hours during the day.

Their bedtime routine usually starts around 8pm and they sleep by 10-11pm. They get a bath, pjs,and a bottle. Sometimes it takes awhile for me to get them to sleep because they sometimes take a late nap.maybe around 6-7? I dont know how to prevent this...

I would love for them to be sleeping earlier but I don't think this works for them. That also means they will wake up more at night I think. They only do 3-5 hours of sleep in a row. They usually wake up at 2-2:30 and again at 5:30-6:30. Any tips on improving our sleep patterns or bedtime routine. Thanks ladies!